#comm for moonx

Support note (2026-09-05): this README is supplementary. The support record is the only capability authority; it separates native compatibility evidence from Wasm policy and smoke evidence. Options mentioned here but not promoted in that record are not compatibility guarantees.

Compare two sorted files line by line, producing three columns: lines only in FILE1, lines only in FILE2 (one leading TAB), and common lines (two leading TABs):

moonx cli/comm left.txt right.txt
moonx cli/comm -12 left.txt right.txt   # only common lines

Options: -1, -2, -3 suppress the corresponding column (combinable as -12, -23, ...). Use - to read stdin. Records are compared as raw bytes, matching LC_ALL=C order. --check-order reports an unsorted input and exits nonzero. By default, disorder is diagnosed once unpairable input is observed, matching GNU's conditional check. -z reads and writes NUL-delimited records; --nocheck-order explicitly selects permissive order handling whenever both order flags are present.

Source Files

main.mbt

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